编译后表格中的文字不显示，出现空白，求教是哪里出现问题？

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\begin{table*}

\caption{Key input variables and DCF main values of Scheme 2}

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\toprule

Variables            &Values        &Definition/Resource\\

\midrule

CapEx-HFO         &\$ 4.62m    &Initial investment in installing desulfurization washing equipment\\

Price-HFO          &\$433/ton     &Using the average price of IFO380 (Singapore)\\

Usage-HFO          &40 000 tons &HFO annual usage\\

Discount rate      &11\%      &Weighted average cost of capital (WACC) is the company's\\ weighted cost of capital, including all sources of capital: equity and debt. It represents the discount rate of estimated cash flows (Block, 2011; Bennouna et al., 2010).

Service-life      &15 years       &Economic life of desulfurization equipment\\

Depreciation method  &Sum-of-the-years -digits method (SYD)  &Accelerated depreciation is adopted due to the increase in maintenance costs of desulfurization equipment. This article uses SYD.\\

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